3B5N

Structure of the yeast plasma membrane SNARE complex

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.206 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history. 


Literature

The Structure of the Yeast Plasma Membrane SNARE Complex Reveals Destabilizing Water-filled Cavities.

Strop, P., Kaiser, S.E., Vrljic, M., Brunger, A.T.

(2008) J Biol Chem 283: 1113-1119

  • DOI: 10.1074/jbc.M707912200
  • Primary Citation of Related Structures:  
    3B5N

  • PubMed Abstract: 

    • SNARE proteins form a complex that leads to membrane fusion between vesicles, organelles, and plasma membrane in all eukaryotic cells. We report the 1.7A resolution structure of the SNARE complex that mediates exocytosis at the plasma membrane in the ...

    SNARE proteins form a complex that leads to membrane fusion between vesicles, organelles, and plasma membrane in all eukaryotic cells. We report the 1.7A resolution structure of the SNARE complex that mediates exocytosis at the plasma membrane in the yeast Saccharomyces cerevisiae. Similar to its neuronal and endosomal homologues, the S. cerevisiae SNARE complex forms a parallel four-helix bundle in the center of which is an ionic layer. The S. cerevisiae SNARE complex exhibits increased helix bending near the ionic layer, contains water-filled cavities in the complex core, and exhibits reduced thermal stability relative to mammalian SNARE complexes. Mutagenesis experiments suggest that the water-filled cavities contribute to the lower stability of the S. cerevisiae complex.

    Organizational Affiliation: 

    Howard Hughes Medical Institute and Department of Molecular and Cellular Physiology, Stanford University, Stanford, California 94305, USA.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Synaptobrevin homolog 1A, E, I61Saccharomyces cerevisiaeMutation(s): 0 
Gene Names: SNC1
Find proteins for P31109 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P31109 
Go to UniProtKB:  P31109
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Protein SSO1B, F, J69Saccharomyces cerevisiaeMutation(s): 0 
Gene Names: SSO1
Find proteins for P32867 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P32867 
Go to UniProtKB:  P32867
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Protein transport protein SEC9C, G, K70Saccharomyces cerevisiaeMutation(s): 0 
Gene Names: SEC9, HSS7
Find proteins for P40357 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P40357 
Go to UniProtKB:  P40357
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
Protein transport protein SEC9D, H, L64Saccharomyces cerevisiaeMutation(s): 0 
Gene Names: SEC9, HSS7
Find proteins for P40357 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P40357 
Go to UniProtKB:  P40357
Protein Feature View
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.206 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 76.956α = 90
b = 48.113β = 97.77
c = 110.265γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
PHASERphasing
PHENIXrefinement
PDB_EXTRACTdata extraction
Blu-Icedata collection

Structure Validation

View Full Validation Report


View more in-depth experimental data

Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-11-20
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2017-10-25
    Changes: Refinement description